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CA $270 Cheap Flights from Chicago (ORD) to Seattle (SEA)

View CA $270 flight on Tue, Aug 25, 2026Opens in a new window

Popular airlines from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Chicago (ORD) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $270 for one-way flights and CA $506 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Oct 7 - Wed, Oct 14
ORD
Chicago
SEA
Seattle
CA $506 Roundtrip, found 3 days ago
CA $506
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Oct 7 from Chicago to Seattle, returning Wed, Oct 14, priced at CA $506 found 3 days ago
American Airlines
Tue, Aug 4 - Tue, Aug 11
ORD
Chicago
SEA
Seattle
CA $508 Roundtrip, found 2 days ago
CA $508
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Aug 4 from Chicago to Seattle, returning Tue, Aug 11, priced at CA $508 found 2 days ago
American Airlines
Sat, Aug 22 - Thu, Aug 27
ORD
Chicago
SEA
Seattle
CA $512 Roundtrip, found 2 days ago
CA $512
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Aug 22 from Chicago to Seattle, returning Thu, Aug 27, priced at CA $512 found 2 days ago
Alaska Airlines
Tue, Aug 4 - Tue, Aug 11
ORD
Chicago
SEA
Seattle
CA $512 Roundtrip, found 2 days ago
CA $512
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Aug 4 from Chicago to Seattle, returning Tue, Aug 11, priced at CA $512 found 2 days ago
American Airlines
Thu, Aug 6 - Tue, Aug 11
ORD
Chicago
SEA
Seattle
CA $514 Roundtrip, found 4 days ago
CA $514
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Aug 6 from Chicago to Seattle, returning Tue, Aug 11, priced at CA $514 found 4 days ago
Alaska Airlines
Thu, Aug 6 - Thu, Aug 13
ORD
Chicago
SEA
Seattle
CA $515 Roundtrip, found 4 days ago
CA $515
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Aug 6 from Chicago to Seattle, returning Thu, Aug 13, priced at CA $515 found 4 days ago
American Airlines
Thu, Aug 20 - Wed, Aug 26
ORD
Chicago
SEA
Seattle
CA $516 Roundtrip, found 1 day ago
CA $516
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 20 from Chicago to Seattle, returning Wed, Aug 26, priced at CA $516 found 1 day ago
United
Tue, Jul 21 - Tue, Jul 28
ORD
Chicago
SEA
Seattle
CA $536 Roundtrip, found 2 days ago
CA $536
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jul 21 from Chicago to Seattle, returning Tue, Jul 28, priced at CA $536 found 2 days ago
Sun Country Airlines
Wed, Jul 22 - Mon, Jul 27
ORD
Chicago
SEA
Seattle
CA $685 Roundtrip, found 2 days ago
CA $685
Roundtrip
found 2 days ago
Select Sun Country Airlines flight, departing Wed, Jul 22 from Chicago to Seattle, returning Mon, Jul 27, priced at CA $685 found 2 days ago
JetBlue Airways
Wed, Oct 7 - Wed, Oct 14
ORD
Chicago
SEA
Seattle
CA $702 Roundtrip, found 3 days ago
CA $702
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Wed, Oct 7 from Chicago to Seattle, returning Wed, Oct 14, priced at CA $702 found 3 days ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from CA $585
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from CA $585

Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
One-way flights typically cost between £152 and £614 and return flights often range between £317 and £1,018. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
September is typically the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average return fares of approximately £193. This is about 15% lower than the average price throughout the year. September often sees lower prices as the peak summer travel season ends and demand begins to decrease. Other cheap months to fly from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) include February and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter ORD to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveller to traveller. If you like to fly early, AS offers early morning flights. If price is the most important factor, AS typically offers the lowest fares. UA offers the most daily flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Based on booking data from the past year, the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) depends on what you're looking for. If you're aiming for the cheapest fares, September and February are typically the most budget-friendly months, with average return flights around £193. However, if you prefer to travel when there are plenty of flight options and a high volume of travelers, May and August are the most popular months. While these months might not offer the absolute lowest prices, you'll have a wide selection of flights to choose from.*Prices based on flights available on Expedia in the last year.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
When flying from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), you have plenty of options! There are approximately 15 nonstop flights per day. For even more choice, look at flights that include layovers, as there are around 174 connecting flights per day. Some common connection points include Denver Intl. (DEN), San Francisco Intl. (SFO), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 12:00 AM local time, operated by American Airlines. This is a seasonal service active in December. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Friday, with around 92 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Delta Air Lines. Friday offers notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the early morning, from 6am to 9am. Approximately 35% of passengers prefer this time window. Many major carriers, including American Airlines, Alaska Airlines and Delta Air Lines, offer flights during this window. These times work well because you can get an early start to your travel day and arrive in Seattle with plenty of time to settle in.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Direct flights from ORD to SEA usually take about 4 hours 50 minutes, traveling roughly 1,716 miles. If you opt for a connecting flight, expect to add around 4 hours 10 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for ORD to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from O'Hare Intl. (ORD)?
If you're planning to travel to Seattle from O'Hare Intl. (ORD), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), San Diego Intl. (SAN), Love Field (DAL) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, Sun Country Airlines, United
Roundtrip price
CA $499
Distance
2745 km
Average flight time
2 hours 37 mins

Book with confidence

Chicago to Seattle Flights

The easy way to book your flights from Chicago to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Chicago whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Chicago to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from O'Hare Intl., ORD to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Chicago to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Chicago currently is just CA $506 rising to CA $702.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Chicago 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Chicago to Seattle Flights

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